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230012123123 = 19612938232
BaseRepresentation
bin1101011000110111001…
…0100111011111110011
3210222200221101111200002
43112031302213133303
512232031100414443
6253355514020215
722421625534146
oct3261562473763
9728627344602
10230012123123
1189602935542
12386b271766b
13188c806a303
14b1bdda405d
155eb31952b8
hex358dca77f3

230012123123 has 24 divisors (see below), whose sum is σ = 247227457680. Its totient is φ = 213342932160.

The previous prime is 230012123119. The next prime is 230012123129. The reversal of 230012123123 is 321321210032.

It is not a de Polignac number, because 230012123123 - 22 = 230012123119 is a prime.

It is a super-2 number, since 2×2300121231232 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230012123095 and 230012123104.

It is not an unprimeable number, because it can be changed into a prime (230012123129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279479690 + ... + 279480512.

It is an arithmetic number, because the mean of its divisors is an integer number (10301144070).

Almost surely, 2230012123123 is an apocalyptic number.

230012123123 is a deficient number, since it is larger than the sum of its proper divisors (17215334557).

230012123123 is an frugal number, since it uses more digits than its factorization.

230012123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230012123123 its reverse (321321210032), we get a palindrome (551333333155).

The spelling of 230012123123 in words is "two hundred thirty billion, twelve million, one hundred twenty-three thousand, one hundred twenty-three".

Divisors: 1 19 61 293 823 1159 5567 15637 17873 50203 241139 339587 677329 953857 4581641 12869251 14709479 41317069 198457397 279480101 785024311 3770690543 12105901217 230012123123